Used trailer for 12-16’ boat. Solid trailer with a jointed tongue. Picked it up in spring with an aluminum boat. Boat is no longer leaving the lake. I drove it 300 miles. It tows well. I added a new front jack and gave it a coat of rustoleum to extend its life. Wheel treads are in good shape but the side walls have some dry rot. Will likely need replacing in the few years. Ball is 1 7/8th.